2008 Suburban AC leaking water inside cab
#1
2008 Suburban AC leaking water inside cab
On a trip this past week my wife noticed on the passenger side as she stretched her feet under the dash it was dripping water...seems like I have read that this is a AC drain that is clogged...How do I go about finding the clog and clearing it?
#2
Super Moderator
Given you're 4x4, you may have enough room to slip under your ride without a lift ? Getting it up on a Lift is better though.
Usually toward the passenger's side, and right as the Firewall drops down and turns under the chassis, you should see a open ended rubber tube just sticking out of the Firewall. Maybe it's a little higher up given your specific model ?
Use a "gentle" blast of Air up into the tube (5-10 psi) but don't thrust the tip of the Air Hose up and seal it against the tube. Just real gentle flow ! To much and you might blow the other end of the Tube off of the drain pan.
So be careful !
IF you've hit the right tube, you should see an immediate discharge of water out of it, assuming that you've run your A/C recently.
Given that you had to do this at all, and depending on why it's blocked (gunk or insulation) you may have to repeat this occasionally.
Usually toward the passenger's side, and right as the Firewall drops down and turns under the chassis, you should see a open ended rubber tube just sticking out of the Firewall. Maybe it's a little higher up given your specific model ?
Use a "gentle" blast of Air up into the tube (5-10 psi) but don't thrust the tip of the Air Hose up and seal it against the tube. Just real gentle flow ! To much and you might blow the other end of the Tube off of the drain pan.
So be careful !
IF you've hit the right tube, you should see an immediate discharge of water out of it, assuming that you've run your A/C recently.
Given that you had to do this at all, and depending on why it's blocked (gunk or insulation) you may have to repeat this occasionally.
#3
Administrator
While I haven't seen the one on current models, the rubber tube used to be pinched shut to prevent vermin, etc from entering. Rather than using compressed air, I've had good luck poking a plastic soda straw into the drain tube. It can't damage anything and you have instant feedback cuz the water will flow thru the straw if the drain is clogged.
Thread
Thread Starter
Forum
Replies
Last Post
grndslm
Tahoe & Suburban
10
December 18th, 2012 2:38 AM